| PEOPLE | Greenwood | Mount Prospect | United States |
| Population | 49,791 | 54,167 | 308,035,306 |
| Pop. Density | 2,345 | 5,239 | 87 |
| Pop. Change | 30.19% | -4.79% | 8.07% |
| Median Age | 34 | 39.7 | 37.3 |
| Households | 19,615 | 20,564 | 116,716,292 |
| Household Size | 2.49 | 2.62 | 2.58 |
| Male Population | 48.43% | 49.35% | 49.27% |
| Female Population | 51.57% | 50.65% | 50.96% |
| Married Population | 49.61% | 52.88% | 47.02% |
| Single Population | 50.39% | 47.12% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.87% | 6.29% | 6.56% |
| Age 5 to 9 | 7.32% | 6.31% | 6.61% |
| Age 10 to 14 | 7.22% | 6.40% | 6.71% |
| Age 15 to 17 | 4.17% | 3.91% | 4.21% |
| Age 18 to 20 | 2.29% | 2.00% | 2.95% |
| Age 21 to 24 | 6.68% | 5.24% | 7.01% |
| Age 25 to 34 | 15.93% | 13.32% | 13.33% |
| Age 35 to 44 | 13.88% | 13.96% | 13.33% |
| Age 45 to 49 | 12.93% | 15.08% | 14.61% |
| Age 50 to 54 | 12.93% | 15.08% | 14.61% |
| Age 55 to 59 | 10.09% | 11.64% | 11.84% |
| Age 60 to 64 | 10.09% | 11.64% | 11.84% |
| Age 65 to 74 | 6.15% | 7.79% | 7.05% |
| Age 75 to 84 | 3.73% | 5.99% | 4.24% |
| Age 85 and over | 1.76% | 2.07% | 1.78% |
| RACE | | | |
| White | 90.06% | 77.01% | 72.41% |
| Black | 1.70% | 2.37% | 12.61% |
| Asian | 3.75% | 11.70% | 4.75% |
| American Indian | 0.26% | 0.36% | 0.95% |
| Other | 4.24% | 8.56% | 9.28% |
| Hispanic | 0.00% | 2.07% | 16.35% |
| Non-Hispanic | 100.00% | 97.93% | 83.65% |
| FAMILY | | | |
| Married, w/children | 34.78% | 36.18% | 30.42% |
| Married, no children | 40.31% | 46.25% | 42.46% |
| Single, w/children | 15.31% | 7.61% | 14.39% |
| Single, no children | 9.59% | 9.96% | 12.73% |
| Divorced | 12.27% | 7.31% | 10.62% |
| Separated | 2.40% | 3.35% | 4.97% |
| Widowed | 6.56% | 6.04% | 6.14% |
| Now Married | 50.20% | 53.70% | 46.32% |
| Never Married | 28.57% | 29.60% | 31.95% |
